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117 GENNAKER DR, ROUND ROCK, TX 78681

ROUND ROCK, 78681 — williamson County

4 bed3 bath1,667 sqftBuilt 2016

Property at a Glance

This home is estimated between $501,764 and $896,635, with a best estimate of $682,346. That places the property below the R302609C - HIGHLAND HORIZON median of $781,434, in a neighborhood that appreciated 2.3% over the past year.

Estimated Value Range

$501,764 $896,635
Best Estimate
$682,346
WCAD Value
$791,612
Low Confidence

Based on 5 comparable properties(0 in the same subdivision)

There are 5 comparable properties within range, but none are in R302609C - HIGHLAND HORIZON. The estimated range of $501,764 and $896,635 should be treated as a rough guide.

Comparable Properties (5)

4 bed 3 bath 1,916 sqft Built 2016
Raw Value $578,786
Adjusted Value $501,764

Adjusted -$77,022 for 249 sqft less living space. Net adjustment: -$77,022.

4 bed 3 bath 1,811 sqft Built 2014
Raw Value $702,015
Adjusted Value $682,346

Adjusted -$44,543 for 144 sqft less living space and +$24,874 for being newer. Net adjustment: -$19,669.

4 bed 3 bath 1,916 sqft Built 2014
Raw Value $562,011
Adjusted Value $509,863

Adjusted -$77,022 for 249 sqft less living space and +$24,874 for being newer. Net adjustment: -$52,148.

4 bed 3 bath 2,219 sqft Built 2007
Raw Value $904,649
Adjusted Value $845,835

Adjusted -$170,747 for 552 sqft less living space and +$111,933 for being newer. Net adjustment: -$58,814.

4 bed 3 bath 2,154 sqft Built 2001
Raw Value $860,722
Adjusted Value $896,635

Adjusted -$150,641 for 487 sqft less living space and +$186,554 for being newer. Net adjustment: +$35,913.

The Neighborhood

This home is valued 1.3% above the R302609C - HIGHLAND HORIZON median of $781,434. With 399 homes in the subdivision, the property sits in the upper tier. The neighborhood appreciated 2.3% over the past year.

R302609C - HIGHLAND HORIZON

typical
399 Properties
$781,434 Median Value
+2.3% YoY Change
0% Have Pool
100% Have Garage
This Home
$791,612
Median
$781,434

This home is +1.3% above the subdivision median.

Tax Analysis

The estimated annual property tax is $15,865 across all districts. With a homestead exemption claimed, that drops to $14,468 — saving $1,397 per year. That's $1,206 per month a buyer should budget. The assessed value increased +9.1% vs the subdivision average of +2.3%. This above-average increase gives a protest opportunity score of 54 out of 100 — it may be worth challenging the appraisal.

Tax Districts

DistrictTypeRateAnnual Amount
Round Rock ISDSchool0.8931%$7,070
Brushy Creek MUDMUD0.3868%$3,062
Williamson CountyCounty0.3694%$2,925
Austin Community Collegespecial0.1034%$819
Williamson County ESD #2 - Sam Bass VFDESD0.1000%$792
Brushy Creek MUD Defined AreaMUD0.0900%$712
Williamson County FM/RdCounty0.0443%$351
Upper Brushy Creek WCIDWater0.0170%$135
Williamson Central Appraisal Districtcad0.0000%$0
Total Annual Tax2.0041%$15,865
54 / 100

Moderate opportunity to protest.

Mortgage Context

At today's 30-year mortgage rate of 6.38%, a buyer financing $682,346 would pay approximately $4,259 per month (principal and interest only, excluding taxes and insurance).

Data sourced from Williamson County Appraisal District (WCAD), Texas Education Agency (TEA), and Federal Reserve Economic Data (FRED). Assessment values reflect the appraisal district's estimate, not market sale prices. Report generated 4/18/2026.

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